Search Result for "unsound": 
Wordnet 3.0

ADJECTIVE (6)

1. not in good condition; damaged or decayed;
- Example: "an unsound foundation"

2. not sound financially;
- Example: "unsound banking practices"

3. containing or based on a fallacy;
- Example: "fallacious reasoning"
- Example: "an unsound argument"
[syn: fallacious, unsound]

4. suffering from severe mental illness;
- Example: "of unsound mind"
[syn: mentally ill, unsound, unstable]

5. physically unsound or diseased;
- Example: "has a bad back"
- Example: "a bad heart"
- Example: "bad teeth"
- Example: "an unsound limb"
- Example: "unsound teeth"
[syn: bad, unfit, unsound]

6. of e.g. advice; 



The Collaborative International Dictionary of English v.0.48:

Unsound \Un*sound"\, a.
   Not sound; not whole; not solid; defective; infirm; diseased.
   [1913 Webster] -- Un*sound"ly, adv. -- Un*sound"ness, n.
   [1913 Webster]


WordNet (r) 3.0 (2006):

unsound
    adj 1: not in good condition; damaged or decayed; "an unsound
           foundation" [ant: sound]
    2: not sound financially; "unsound banking practices" [ant:
       sound]
    3: containing or based on a fallacy; "fallacious reasoning"; "an
       unsound argument" [syn: fallacious, unsound]
    4: suffering from severe mental illness; "of unsound mind" [syn:
       mentally ill, unsound, unstable]
    5: physically unsound or diseased; "has a bad back"; "a bad
       heart"; "bad teeth"; "an unsound limb"; "unsound teeth" [syn:
       bad, unfit, unsound]
    6: of e.g. advice